Hydro Battery Storage Project | E.S. Boulos Co.

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Published Jan 18, 2025

Visit: https://esboulos.com/ MYR Group companies, including subsidiary E.S. Boulos (ESB), are long term partners in the clean energy transformation and equipped to take on a wide range of renewables projects including battery storage.

Within just the past few years, installations of battery energy storage systems (BESS) have started “booming” as the technology has improved and costs have dropped. Wood Mackenzie analysts anticipate annual U.S. battery storage installations will grow to more than 20GW by 2030. E.S. Boulos (ESB) is one of the MYR Group companies supporting this growing demand.

ESB finished its first BESS projects last year: leading a three-site engineer-procure-construct (EPC) package for Brookfield Renewable.

Co-location with a power source such as solar, wind or hydro is common for battery storage. For the three sites, the batteries are charged with hydropower and the stored energy can be discharged when it is most needed.

ESB partnered with an engineering firm to come up with the designs and then constructed the three battery storage facilities (two in Maine and one in New Hampshire) providing a combined 30 megawatts of energy storage. ESB oversaw all civil construction, performed the electrical construction and connected the new BESS sites to the power grid.

“We’re very pleased with [E.S.] Boulos,” said Steve Mockler, Director of Construction Brookfield Renewable. “There have been a lot of challenges that we worked through, but we’ve overcome them all and are very proud of the quality of the work that was done. [We’re] Very pleased with how it’s all turned out.”

The team needed to find ways to work within small, constrained spaces with the heavy equipment necessary to lift more than 30,000 lbs. of batteries. They also faced long lead times for some materials due to the lingering impacts COVID had on manufacturing.

ESB also needed to stop work due to a common soil contaminant. The owner had the contaminated soil removed which finished during the winter, but foundation construction and battery installations had to wait until spring.